Polychlorinated dibenzo-p-dioxins, dibenzofurans and dioxin-like polychlorinated biphenyls in food and feed in Latvia in 2009–2011

Abstract

During 2009–2011 a monitoring programme for 17 polychlorinated dibenzo-p-dioxins (PCDDs)/polychlorinated dibenzofurans (PCDFs) and 12 dioxin-like polychlorinated biphenyls (DL-PCBs) was conducted in the Latvian food and feed market. Using ISO 17025-accredited analytical methodology, investigation of 121 food (milk, dairy products, meat, eggs, fish, fish products) and 66 feed samples (fish meal and oil, compound and mineral feed, vegetable and animal fats) was performed. Most samples showed contamination below the European Commission (EC) Regulation No. 1881/2006 and Commission Directive 2006/13/EC limits. Average total toxicological equivalent (total-TEQ₍₁₉₉₈₎) concentrations within the food sample groups, except fish and fish products, ranged between 0.41 and 15.1 pg total-TEQ₍₁₉₉₈₎ g⁻¹ fat. Fish and fish products showed contamination levels from 0.18 to 46.0 pg total-TEQ₍₁₉₉₈₎ g⁻¹ fresh weight (f.w.). Fifty-seven per cent of cod liver samples were non-compliant. The most contaminated feed samples were fish meal and fish oil. A comparison with WHO-TEF₍₂₀₀₅₎ data is given.

Keywords:

• PCDD/DFs
• DL-PCBs
• Latvian market
• monitoring
• food
• feed

Funding

This work has been supported by the European Social Fund within the project “Support for Doctoral Studies at University of Latvia.”